Results 111 to 120 of about 435,327 (305)

An integral system of Matukuma type with negative exponents

open access: yesNetworks and Heterogeneous Media
We study positive solutions to the integral system \begin{document}$ \begin{cases} u(x) = \int\limits_{ \mathbb R^N}\frac{K(y)v^{-p}(y)}{ |x-y|^{N-\alpha}} dy\quad\text{ for all }x\in \mathbb R^N, \\ v(x) = \int\limits_{ \mathbb R^N}\frac{L(y)u^
Changhong Li
doaj   +1 more source

Fabrication‐Directed Entanglement for Designing Chiral and Anisotropic Metamaterial Foams

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces fabrication‐directed entanglement (FDE), combining viscous thread printing and topology optimization to program entangled foams with spatially patterned stiffness. By tuning coil density, FDE enables anisotropy, programmable Poisson's ratio, and chirality in foams.
Daniel Revier   +3 more
wiley   +1 more source

On $ r $-fuzzy soft $ \gamma $-open sets and fuzzy soft $ \gamma $-continuous functions with some applications

open access: yesAIMS Mathematics
In this paper, we defined and discussed a new class of fuzzy soft open (FS-open) sets, called $ r $-fuzzy soft $ \gamma $-open ($ r $-FS-$ \gamma $-open) sets in fuzzy soft topological spaces (FSTSs) based on fuzzy topologies in the sense of Šostak.
Fahad Alsharari   +2 more
doaj   +1 more source

Liquid Crystal Elastomers Under Confinement: A Review of Template‐Based Fabrication and Applications

open access: yesAdvanced Engineering Materials, EarlyView.
Template‐assisted confinement offers powerful ways to control the alignment, structure, and function of liquid crystal elastomers. This review highlights several templating strategies and details how geometry and interfaces shape material responses.
Meng Zhang   +7 more
wiley   +1 more source

Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification

open access: yesAdvanced Engineering Materials, EarlyView.
A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu   +2 more
wiley   +1 more source

Experimental Analysis and Physics‐Based Analytical Model on Twisted and Coiled Artificial Muscles

open access: yesAdvanced Engineering Materials, EarlyView.
Twisted and coiled artificial muscles made from silver‐coated nylon fibers are investigated through experiments and analytical modeling. The actuators achieve contractions up to 19.3% and specific work of 8 kJ kg−1, though efficiency remains limited (≈0.15%) by thermal losses.
Salvatore Garofalo   +3 more
wiley   +1 more source

On some inequalities for Beta and Gamma functions via some classical inequalities

open access: yesJournal of Inequalities and Applications, 2005
We improve several results recently established by Dragomir et al. in (2000) for the Gamma and Beta functions. All we need is some clever applications of classical inequalities.
Elezović N   +2 more
doaj  

The Exact Density of the Eigenvalues of the Wishart and Matrix-Variate Gamma and Beta Random Variables

open access: yesMathematics
The determination of the distributions of the eigenvalues associated with matrix-variate gamma and beta random variables of either type proves to be a challenging problem. Several of the approaches utilized so far yield unwieldy representations that, for
A. M. Mathai, Serge B. Provost
doaj   +1 more source

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